Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign

doi:10.5194/amt-13-5087-2020

	Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign
	Wang, Yang 2; Apituley, Arnoud 3; Bais, Alkiviadis 4; Beirle, Steffen 2; Benavent, Nuria 5; Borovski, Alexander 6; Bruchkouski, Ilya 7; Chan, Ka Lok 8,9; Donner, Sebastian 2; Drosoglou, Theano 4
刊名	ATMOSPHERIC MEASUREMENT TECHNIQUES
	2020-09-29
卷号	13
ISSN号	1867-1381
DOI	10.5194/amt-13-5087-2020
通讯作者	Wang, Yang(y.wang@mpic.de)
英文摘要	We present the inter-comparison of delta slant column densities (SCDs) and vertical profiles of nitrous acid (HONO) derived from measurements of different multiaxis differential optical absorption spectroscopy (MAX-DOAS) instruments and using different inversion algorithms during the Second Cabauw Inter-comparison campaign for Nitrogen Dioxide measuring Instruments (CINDI-2) in September 2016 at Cabauw, the Netherlands (51.97 degrees N, 4.93 degrees E). The HONO vertical profiles, vertical column densities (VCDs), and near-surface volume mixing ratios are compared between different MAX-DOAS instruments and profile inversion algorithms for the first time. Systematic and random discrepancies of the HONO results are derived from the comparisons of all data sets against their median values. Systematic discrepancies of HONO delta SCDs are observed in the range of +/- 0.3 x 10(15) molec. cm(-2), which is half of the typical random discrepancy of 0.6 x 10(15) molec. cm(-2). For a typical high HONO delta SCD of 2 x 10(15) molec. cm(-2), the relative systematic and random discrepancies are about 15% and 30 %, respectively. The inter-comparison of HONO profiles shows that both systematic and random discrepancies of HONO VCDs and nearsurface volume mixing ratios (VMRs) are mostly in the range of similar to +/- 0.5 x 10(14) molec. cm(-2) and similar to +/- 0.1 ppb (typically similar to 20 %). Further we find that the discrepancies of the retrieved HONO profiles are dominated by discrepancies of the HONO delta SCDs. The profile retrievals only contribute to the discrepancies of the HONO profiles by similar to 5 %. However, some data sets with substantially larger discrepancies than the typical values indicate that inappropriate implementations of profile inversion algorithms and configurations of radiative transfer models in the profile retrievals can also be an important uncertainty source. In addition, estimations of measurement uncertainties of HONO dSCDs, which can significantly impact profile retrievals using the optimal estimation method, need to consider not only DOAS fit errors, but also atmospheric variability, especially for an instrument with a DOAS fit error lower than similar to 3 x 10(14) molec. cm(-2). The MAX-DOAS results during the CINDI-2 campaign indicate that the peak HONO levels (e.g. near-surface VMRs of similar to 0.4 ppb) often appeared in the early morning and below 0.2 km. The near-surface VMRs retrieved from the MAX-DOAS observations are compared with those measured using a co-located long-path DOAS instrument. The systematic differences are smaller than 0.15 and 0.07 ppb during early morning and around noon, respectively. Since true HONO values at high altitudes are not known in the absence of real measurements, in order to evaluate the abilities of profile inversion algorithms to respond to different HONO profile shapes, we performed sensitivity studies using synthetic HONO delta SCDs simulated by a radiative transfer model with assumed HONO profiles. The tests indicate that the profile inversion algorithms based on the optimal estimation method with proper configurations can reproduce the different HONO profile shapes well. Therefore we conclude that the features of HONO accumulated near the surface derived from MAX-DOAS measurements are expected to represent the ambient HONO profiles well.
资助项目	ESA through the CINDI-2 project[4000118533/16/I-Sbo] ; ESA through FRM4DOAS project[4000118181/16/I-EF] ; NSFC[41805027] ; NSFC[41530644] ; Russian Foundation for Basic Research[18-35-00682] ; Russian Academy of Sciences[0150-2018-0052] ; Russian Academy of Sciences[0129-2019-0002] ; NASA's Atmospheric Composition Program[NASA-16-NUP2016-0001] ; US National Science Foundation[AGS-1620530] ; European Union's Horizon 2020 research and innovation programme through the ACTRIS-2 transnational access programme[654109]
WOS关键词	ABSORPTION CROSS-SECTIONS ; RADIATIVE-TRANSFER CALCULATIONS ; LIBRADTRAN SOFTWARE PACKAGE ; CU 2-D-MAX-DOAS INSTRUMENT ; ZENITH-SKY UV ; AEROSOL EXTINCTION ; RURAL SITE ; NITROGEN-DIOXIDE ; RAMAN-SCATTERING ; DAYTIME HONO
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000576665600001
资助机构	ESA through the CINDI-2 project ; ESA through FRM4DOAS project ; NSFC ; Russian Foundation for Basic Research ; Russian Academy of Sciences ; NASA's Atmospheric Composition Program ; US National Science Foundation ; European Union's Horizon 2020 research and innovation programme through the ACTRIS-2 transnational access programme
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104413]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Yang
作者单位	1.Heidelberg Univ, Inst Environm Phys, Heidelberg, Germany 2.Max Planck Inst Chem, Mainz, Germany 3.Royal Netherlands Meteorol Inst KNMI, De Bilt, Netherlands 4.Aristotle Univ Thessaloniki, Lab Atmospher Phys, Thessaloniki, Greece 5.CSIC, Dept Atmospher Chem & Climate, Inst Phys Chem Rocasolano, Madrid, Spain 6.Russian Acad Sci, AM Obukhov Inst Atmospher Phys, Moscow, Russia 7.Belarusian State Univ, Natl Ozone Monitoring Res & Educ Ctr BSU NOMREC B, Minsk, BELARUS 8.Ludwig Maximilians Univ Munchen, Meteorolog Inst, Munich, Germany 9.German Aerosp Ctr DLR, Remote Sensing Technol Inst, Oberpfaffenhofen, Germany 10.Univ Colorado, Dept Chem, Boulder, CO 80309 USA
推荐引用方式 GB/T 7714	Wang, Yang,Apituley, Arnoud,Bais, Alkiviadis,et al. Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign[J]. ATMOSPHERIC MEASUREMENT TECHNIQUES,2020,13.
APA	Wang, Yang.,Apituley, Arnoud.,Bais, Alkiviadis.,Beirle, Steffen.,Benavent, Nuria.,...&Wagner, Thomas.(2020).Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign.ATMOSPHERIC MEASUREMENT TECHNIQUES,13.
MLA	Wang, Yang,et al."Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign".ATMOSPHERIC MEASUREMENT TECHNIQUES 13(2020).